Combined bunk and chock-block for logging-trucks.



PATENTED SEPT. 11, 1906.

T. G. HAYWOOD. I COMBINED BUNK AND CHOCK BLOCK FOR LOGGING TRUCKS.

APPLICATION FILED APE.3,1906.

4 amoewtoz 7. 6r/ZQ Wa0d 35 2/3 attozwn upper channel 8 of the bunk aretwo opp UNITE srns Pars o rice.

THOMAS G. HAYWOOD, OF SEATTLE, WASHINGTON. ."C O MBINED BUNK ANDCHOQK-BLOOK FOB LOGGING-TRUCKS.

IoaZl whom it may concern:

Be it known that I, THOMAS G. HAYWOOD, a citizen of the UnitedStates,residing at Seattle in the county of King and State of .5 k Was n, haveinvented certain new and useful rovements in afiombined Bunk and Choc-Block for Logging-Trucks, of-

which the following is a specification, referrs z genee being hadtherein to the accompanying Ig drawings, wherein- 1 is-a frontelevation, partly in secitlon, showlng an embodiment of my invenv:tionmounted, upon a loggin truck. Figs.

- 2-.anld 3; respectively, are en arged longitu- .5 dina and transversesectional detail views.

' This invention relates to devices employed for retaining logs uponrailway cars or With these ends in .view the invention consists in thenovel construction, ada tation, and combination of parts, as will beherein:

' after described, and pointed out the appended claims. the-drawings thereference-numeral 2 3.represents an I-beam arranged transversel of andcarried upon the body of car or a'truci; ,31and supports upon its web 4another like beam 5 and com rising a bunk. In the web 6 of the memblongitudinal slots 7, having their outer ends terminate at shortdistances fro'm'ithe extremities of the bunk. Located within the O- Isltely-arranged foldable checks 9, severa ly 49 comprised of legs 10 and11 of sufficient lengths to protrude above the upper edges of theadjacent bunk-flanges 12 when the checks are in their upright o erativeposition and of less width than the istance therebetween to allow oftheir being freely slided len thwise of the bunk.

he legs of eachchock are pivotally connected by a in 13, passing throughthe apertured inter tting hinge portions at the top, 5 and arerespectively provided with shoulders Hand 15, adapted'to revent a tooextended opening or spread o the outerleg 10 will be inclined inwardl toa small angle from a perpendicular, whi e the pther leg 11 will inclineoppositely therefrom Specification of Letters Patent.

'Application filed April 3,1908. Serial 11053091566.

er 5 are centrally-disposed the legs-that is to; say, when the chock isin its erect condition Patented Se t. 1 1, 1906.

to an angle approximately forty-five degrees, as clearly shown in Fig 2.

Secured to the inner le 11 0f a chock is an eyebolt 16which protrudesthrough the slot below into the tunnel-like space between the webs ofthe two bunk members and .wherein it is connected to a line or chain 17,which extends longitudinally therethrough to outside the opposite end ofthe bunk and desirably terminates in a ring 17 of greater diameter thanthe contracted opening 18 for the chain formed by blocks 19 or theequivalent rigidly secured to the ends ofthe bunk. Where aHking-pin as20 in Fig. 1, extends throu h the web of beam 2, as ordinarily on trues, elongated links or bars 17f are desirably included in the chain uponeach side of the in in order that interference thereby with a freemovement, of the chain may be avoided.

Grab-hooks 21 are attached by chains 22 e or the like to some suitableplaces on the truck or bunk and are employed to engage with links of therespective chains and prevent their being drawn through said contractedopenings, and thus secure the checks in their set positions and againstthe dislodgin force emanating from the load'of logs carried Theoperation of the invention is as follows: The. chocks, as aboveexplained, are.

anchored against lateral displacement and maintained in their uprightpositions by the grab-hooks engaging the chains and are thus capable ofretaining the logs upon the bunk, as illustrated by check at the left ofFig. 1. When a chock 1s to be released to allow the dumping of therestrained logs, the grabhook is disengaged from the chock-seeuringchain, whereupon the lateral pressure exerted by the logs against theinner leg of the chock causes the latterto be moved out wardly and bealmost immediately tilted over u on the lower edge of the outer leg andfalling in a collapsed state into the upper channel of the bunk when itis incapable of oiiering any obstruction to the rolling or' sliding ofthe logs from the bunk.

It may be mentioned that it is customary at the p ace of dumping toarrange the rails of the track so that the one upon the discharge sideis somewhat lower than the other, thus inclining the car, so that uponbeing released b the chocks the logs will readil roll or s ide from thebunk, and also facil1-. tates the Withdrawing or collapse of the op- IJOposingehock. It is obvious that the chocks can be adjustably positionedto accommodate any load of logs for which the bunk is' adapted, likewisethat the collapsing of a chock is effected with but a slight movementthereof, and that the release is effected from the opposite side of thecar or truck from that of the discharge, thereby rendering it impossiblefor the log-tender to be caught and injured thereby. i

Having described my invention, what I claim is- 1. The combination witha bunk provided withia channel in its top of a chock slidably seated insaid channel and to one side of the mid-length thereof, said chock beingcomprisedoftwo legs hinged so as to fold but imit the extent of theirspread when open, and releasable means controlled from the end of thebunk end opposite to the chock for securing the latter against movementtoward the adjacent end of the bunk.

2. The combination with a bunk provided with a top channel and alongitudinal slot in proximity to each of its ends, of two chocksslidably seated in the said channel and severally comprised of twohinged legs, a chain connected through the respective slots to each ofthe chocks and extending therefrom to beyond the ends of the bunkfarthest from the respective chocks, and means whereby the chain may bedetachably engaged toretain the connected chocks in their operativepositions.

, strained.

ing therefrom to beyond the ends of said beams farthest from therespective chocks,

and means engageable with the chains whereby the chocks may be securedin various po-' sitions longitudinally of the beams.

4. A collapsible chock formed of two legs connected by. a hinge-jointprovided with means whereby the extent of the spread of the legs islimited.

.5. Acollapsible chock formed of two legs pivotally' connected by a pin,and provided with means upon the respective legs for limv iting theextent of the opening thereof,and

means attached'to one of said legs whereby the lateral movement of thesame is re- In testimony whereof I affix my signature in presence of twowitnesses.

THOMAS, (3r. HAYWOOD.

Witnesses:

PIERRE BARNES, E. D. OBRiEN'.

